In the quiet, affluent streets of Mosman Park, Perth’s leafy western suburbs, a scene of unimaginable horror unfolded on the morning of January 30, 2026. Behind the closed doors of a family home on Mott Close, police discovered the bodies of four people—father Jarrod Clune, 50, mother Maiwenna Goasdoue, 49, and their teenage sons Leon, 16, and Otis, 14—alongside three beloved family pets: two dogs and a cat. What began as a routine welfare check by a carer quickly spiraled into one of Western Australia’s most chilling tragedies: a suspected double murder-suicide that has left the nation reeling.

The first clue was chilling enough. Taped to the front door was a handwritten note, its message stark and final: words to the effect of “Don’t enter” and “Call police.” The carer, arriving for a scheduled appointment around 8:15 a.m., followed the instructions and dialed emergency services. Officers entered to find the family scattered in different parts of the house, no weapons in sight, but clear signs that this was no accident. The deaths were immediately classified as suspicious, with homicide detectives stepping in to treat the case as a murder-suicide—parents taking the lives of their sons before turning on themselves.

But the real bombshell came later. Inside the home, investigators uncovered a second note—a detailed, structured letter that has become the dark centerpiece of the investigation. Unlike the brief warning at the door, this second document is alleged to be a full explanation: a heartbreaking manifesto laying bare the parents’ mindset, their overwhelming despair, and the calculated reasoning behind the unthinkable act. Sources close to the probe describe it as a “letter” that not only reveals the joint decision-making between Jarrod and Maiwenna but also outlines a level of premeditation chilling in its clarity—including precise instructions on how the family’s finances should be handled after their deaths.

What drove two devoted parents—described by friends as “the most loving, protective” people whose entire lives revolved around their boys—to this edge? The letter reportedly captures the crushing weight of exhaustion, isolation, and a sense of utter helplessness. Leon and Otis both lived with severe autism and “significant health challenges,” requiring round-the-clock care that fell almost entirely on their parents. Friends and a former carer have spoken out, claiming the family was “failed” by the National Disability Insurance Scheme (NDIS). Funding cuts, repeated rejections for support, and a lack of respite reportedly left Mai and Jarrod “beaten down,” feeling trapped with no viable future for their sons once they were gone.

The second note allegedly delves into this torment: the endless battles for help that went nowhere, the fear that no one else could ever provide the same level of devotion, the agonizing belief that death was the only way to “protect” the boys from a world that had already abandoned them. It paints a portrait of parents who planned together, who weighed their options in desperation, and who chose what they saw as mercy over continued suffering. Police have declined to release the exact contents, citing the ongoing investigation, but leaks suggest the document was pivotal in confirming the murder-suicide classification—detailing not just the “why” but the “how” of their final acts.

The tragedy has ignited a firestorm of grief and outrage across Australia. On social media, tributes pour in for Leon and Otis—described in old school newsletters as joyful boys who loved simple things like playing in block corners or exploring the river—now silenced forever. Friends remember Mai and Jarrod as tireless advocates, always championing their sons, yet constantly hitting walls when seeking help. “They fought every day for their boys to feel seen and heard,” one tribute read. But others turn their anger outward: at a broken system that allegedly pushed a family to the brink. Posts scream of government failure, with hashtags linking the case to broader NDIS cuts and the plight of carers for disabled children.

WA Premier Roger Cook called it an “unimaginable tragedy,” his words echoing the nation’s shock. Yet for many, the second note transforms personal heartbreak into a damning indictment. If it truly spells out the parents’ rationale—the belief that society had left them no choice—then questions loom large: How many other families are teetering on the same edge? How could a support system designed to prevent despair instead contribute to it?

As forensic teams comb the home and autopsies continue, the investigation remains active. No ongoing threat exists to the community, police insist, but the ripple effects are far from over. The second note— that haunting, intimate confession—holds the key to understanding not just what happened in Mott Close, but why a loving family could reach such a devastating conclusion. In Mosman Park’s manicured streets, the silence is deafening, broken only by whispers of a letter that explains the inexplicable… and warns that this family’s nightmare may be a symptom of something much larger.